* [linux-next:master 6172/9662] drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces)
@ 2020-05-18 6:55 kbuild test robot
0 siblings, 0 replies; 3+ messages in thread
From: kbuild test robot @ 2020-05-18 6:55 UTC (permalink / raw
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 6187 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: bdecf38f228bcca73b31ada98b5b7ba1215eb9c9
commit: bbd7ffdbef6888459f301c5889f3b14ada38b913 [6172/9662] clk: Allow the common clk framework to be selectable
config: ia64-randconfig-s001-20200518 (attached as .config)
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-193-gb8fad4bc-dirty
git checkout bbd7ffdbef6888459f301c5889f3b14ada38b913
# save the attached .config to linux build tree
make C=1 ARCH=ia64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char [noderef] <asn:2> *screen_base @@ got n:2> *screen_base @@
drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: expected char [noderef] <asn:2> *screen_base
drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: got void *
>> drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got char [noderef] <asvoid * @@
>> drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: expected void *
drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: got char [noderef] <asn:2> *screen_base
drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void *cpu_addr @@ got char [noderef] <asvoid *cpu_addr @@
drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: expected void *cpu_addr
drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: got char [noderef] <asn:2> *screen_base
drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void *cpu_addr @@ got char [noderef] <asvoid *cpu_addr @@
drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: expected void *cpu_addr
drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: got char [noderef] <asn:2> *screen_base
vim +362 drivers/video/fbdev/atmel_lcdfb.c
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 336
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 337 /**
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 338 * atmel_lcdfb_alloc_video_memory - Allocate framebuffer memory
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 339 * @sinfo: the frame buffer to allocate memory for
1d01e83557105e drivers/video/atmel_lcdfb.c Krzysztof Helt 2009-07-08 340 *
1d01e83557105e drivers/video/atmel_lcdfb.c Krzysztof Helt 2009-07-08 341 * This function is called only from the atmel_lcdfb_probe()
1d01e83557105e drivers/video/atmel_lcdfb.c Krzysztof Helt 2009-07-08 342 * so no locking by fb_info->mm_lock around smem_len setting is needed.
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 343 */
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 344 static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo)
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 345 {
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 346 struct fb_info *info = sinfo->info;
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 347 struct fb_var_screeninfo *var = &info->var;
ea757acad5a518 drivers/video/atmel_lcdfb.c Haavard Skinnemoen 2008-08-12 348 unsigned int smem_len;
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 349
ea757acad5a518 drivers/video/atmel_lcdfb.c Haavard Skinnemoen 2008-08-12 350 smem_len = (var->xres_virtual * var->yres_virtual
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 351 * ((var->bits_per_pixel + 7) / 8));
ea757acad5a518 drivers/video/atmel_lcdfb.c Haavard Skinnemoen 2008-08-12 352 info->fix.smem_len = max(smem_len, sinfo->smem_len);
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 353
f6e45661f9be54 drivers/video/fbdev/atmel_lcdfb.c Luis R. Rodriguez 2016-01-22 354 info->screen_base = dma_alloc_wc(info->device, info->fix.smem_len,
f6e45661f9be54 drivers/video/fbdev/atmel_lcdfb.c Luis R. Rodriguez 2016-01-22 355 (dma_addr_t *)&info->fix.smem_start,
f6e45661f9be54 drivers/video/fbdev/atmel_lcdfb.c Luis R. Rodriguez 2016-01-22 356 GFP_KERNEL);
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 357
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 358 if (!info->screen_base) {
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 359 return -ENOMEM;
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 360 }
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 361
01d3a5e7fab773 drivers/video/atmel_lcdfb.c Haavard Skinnemoen 2008-04-28 @362 memset(info->screen_base, 0, info->fix.smem_len);
01d3a5e7fab773 drivers/video/atmel_lcdfb.c Haavard Skinnemoen 2008-04-28 363
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 364 return 0;
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 365 }
14340586148e7c drivers/video/atmel_lcdfb.c Nicolas Ferre 2007-05-10 366
:::::: The code at line 362 was first introduced by commit
:::::: 01d3a5e7fab7732cfc5d5d4533e9378ea435295a atmel_lcdfb: don't initialize a pre-allocated framebuffer
:::::: TO: Haavard Skinnemoen <hskinnemoen@atmel.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [linux-next:master 6172/9662] drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrec
2020-05-18 6:55 [linux-next:master 6172/9662] drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces) kbuild test robot
@ 2020-05-18 7:51 ` Arnd Bergmann
-1 siblings, 0 replies; 3+ messages in thread
From: Arnd Bergmann @ 2020-05-18 7:51 UTC (permalink / raw
To: linux-fbdev
On Mon, May 18, 2020 at 8:56 AM kbuild test robot <lkp@intel.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: bdecf38f228bcca73b31ada98b5b7ba1215eb9c9
> commit: bbd7ffdbef6888459f301c5889f3b14ada38b913 [6172/9662] clk: Allow the common clk framework to be selectable
> config: ia64-randconfig-s001-20200518 (attached as .config)
> reproduce:
> # apt-get install sparse
> # sparse version: v0.6.1-193-gb8fad4bc-dirty
> git checkout bbd7ffdbef6888459f301c5889f3b14ada38b913
> # save the attached .config to linux build tree
> make C=1 ARCH=ia64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kbuild test robot <lkp@intel.com>
>
>
> sparse warnings: (new ones prefixed by >>)
>
> drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char [noderef] <asn:2> *screen_base @@ got n:2> *screen_base @@
> drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: expected char [noderef] <asn:2> *screen_base
> drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: got void *
> >> drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got char [noderef] <asvoid * @@
> >> drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: expected void *
> drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: got char [noderef] <asn:2> *screen_base
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void *cpu_addr @@ got char [noderef] <asvoid *cpu_addr @@
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: expected void *cpu_addr
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: got char [noderef] <asn:2> *screen_base
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void *cpu_addr @@ got char [noderef] <asvoid *cpu_addr @@
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: expected void *cpu_addr
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: got char [noderef] <asn:2> *screen_base
This is an old bug, valid but harmless. The same thing happens in a number
of fbdev drivers, but it may be hard to motivate someone to fix them all.
Arnd
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [linux-next:master 6172/9662] drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces)
@ 2020-05-18 7:51 ` Arnd Bergmann
0 siblings, 0 replies; 3+ messages in thread
From: Arnd Bergmann @ 2020-05-18 7:51 UTC (permalink / raw
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 2524 bytes --]
On Mon, May 18, 2020 at 8:56 AM kbuild test robot <lkp@intel.com> wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: bdecf38f228bcca73b31ada98b5b7ba1215eb9c9
> commit: bbd7ffdbef6888459f301c5889f3b14ada38b913 [6172/9662] clk: Allow the common clk framework to be selectable
> config: ia64-randconfig-s001-20200518 (attached as .config)
> reproduce:
> # apt-get install sparse
> # sparse version: v0.6.1-193-gb8fad4bc-dirty
> git checkout bbd7ffdbef6888459f301c5889f3b14ada38b913
> # save the attached .config to linux build tree
> make C=1 ARCH=ia64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kbuild test robot <lkp@intel.com>
>
>
> sparse warnings: (new ones prefixed by >>)
>
> drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char [noderef] <asn:2> *screen_base @@ got n:2> *screen_base @@
> drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: expected char [noderef] <asn:2> *screen_base
> drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: got void *
> >> drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got char [noderef] <asvoid * @@
> >> drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: expected void *
> drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: got char [noderef] <asn:2> *screen_base
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void *cpu_addr @@ got char [noderef] <asvoid *cpu_addr @@
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: expected void *cpu_addr
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: got char [noderef] <asn:2> *screen_base
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void *cpu_addr @@ got char [noderef] <asvoid *cpu_addr @@
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: expected void *cpu_addr
> drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: got char [noderef] <asn:2> *screen_base
This is an old bug, valid but harmless. The same thing happens in a number
of fbdev drivers, but it may be hard to motivate someone to fix them all.
Arnd
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-05-18 7:51 [linux-next:master 6172/9662] drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrec Arnd Bergmann
2020-05-18 7:51 ` [linux-next:master 6172/9662] drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces) Arnd Bergmann
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